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  1. Minder

    How to de-solder?

    For large areas and stubborn jobs, I made myself a someting similar , a heavy duty iron from a bar of copper rod, and heat it up really good with a propane torch. You may need something like this in order to maintain heat for larger jobs.
  2. Minder

    Forward reverse switch HELP!

    In all probability the switch would go after the speed controller Or at least the pair of motor side leads
  3. Minder

    Forward reverse switch HELP!

    For reverse feature, The switch should have 6 terminals DPDT, (image IMG_ 4824.jpg) The -/+ power goes to centre two the motor is fed from one end or the other, a connection is made from the remaining two bur crossed over, see pic
  4. Minder

    Forward reverse switch HELP!

    That is a DC brushed motor, by the look of it you would normally use a SW with centre-off as it is not good to go from one direction to another without stop. the motor that can do this without pause is a stepper motor.
  5. Minder

    Identifying and replacing a small DC motor

    Does the motor run OK off the machine? They are well made motors, if you DO have to replace it, look for ball bearing versions.
  6. Minder

    LifeFitness T3 treadmill "Motor Comm Error" simple fix.

    Some are easier than others, simply because someone has taken the time to do a 'Reverse-engineering' of the motor board, where most of the faults occur. They practically all use a DC motor and Mosfet or other phase angle control.
  7. Minder

    Help with PCB Layout ,Drilling plan and BOM (KICAD)

    "like an arrow"????
  8. Minder

    Possible to modify LED Christmas tree circuit for dimming?

    I did a similar project for a member of a similar site to this, he had three banks of LED's he wanted a slow phase in phase out of each bank color in turn, so only two banks were actually in action at any one time over the three colors. I ended up using a small 8 pin PicMicro with Peripheral...
  9. Minder

    Hegner Scroll Saw - Motor speed control issue

    If no power on then you would only see a result if it was a passive device such as the magnetic version, and then it would likely be a contact closure, otherwise a optical type for e.g. you would see no difference.
  10. Minder

    Hegner Scroll Saw - Motor speed control issue

    BTW is there any manuf. markings on the sensor?
  11. Minder

    Hegner Scroll Saw - Motor speed control issue

    It is likely that it is coarse enough to see with a meter if turned VERY slowly !
  12. Minder

    Hegner Scroll Saw - Motor speed control issue

    The two wire connection indicates it could be a optical unit, or even magnetic sensor, either way, the signal would likely be just 0v to whatever the sensor supply is, i.e. , LV DC . You may have to turn it really slow to see the square wave out put.
  13. Minder

    PWM on 12volt winch?

    If you want a AC motor/VFD matched pair and have a local rep for WEG motors and VFD's , they get their engineering dept to look it over and suggest a matched pair for you !
  14. Minder

    How to Make treadmill motor wireless

    You would need to know the nature of the control signal first maybe. Pulse width?, analogue? frequency etc?
  15. Minder

    Stepper Motors & Drivers

    NEMA 17 refers to the mounting face spec. not the various electrical motor specs themselves.
  16. Minder

    Help With DC Motor Speed Controller

    Very Typical of items of Chinese origin, unfortunately. Often a case of doing some 'Reverse Engineering' !:(
  17. Minder

    Change My Motherboard Myself? Need Recommendations

    I have also built a few over the years also, and my favorite goto has always been ASUS as well !.
  18. Minder

    LibrePCB

    Hope it is a little less convoluted than LIBREcad !. Wonder how it stacks up against Kicad?
  19. Minder

    REEBOK ZR-Lite Treadmill - no power

    Trace from the AC terminals and sketch a bit of a diagram as you go. Typically it leads to either a bridge rectifier for DC or a single diode and large electrolytic capacitor.
  20. Minder

    REEBOK ZR-Lite Treadmill - no power

    Do a little reverse-engineering of the AC in circuit and see how far the input power goes for starters.
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